公开(公告)号：US11313971B1

公开(公告)日：2022-04-26

申请号：US17387561

申请日：2021-07-28

Applicant: BEIJING INSTITUTE OF TECHNOLOGY

Inventor： Lan Jiang ,  Baoshan Guo ,  Tianyong Zhang

IPC: G01C3/08 ,  G01S17/894 ,  H04N5/372 ,  G01B11/25 ,  G01S7/484

Abstract: A three-dimensional imaging system and method are provided. The three-dimensional imaging system includes: an ultrashort pulse laser light source configured to generate a detection beam; a supercontinuum spectrum generator configured to generate a supercontinuum spectrum based on the detection beam passing through the supercontinuum spectrum generator; a pulse separation delayer configured to generate a continuous pulse sequence of different wavelengths with a time interval based on the supercontinuum spectrum; a multi-frequency pulse interference fringe generator configured to generate multi-frequency interference fringe patterns of different wavelength ranges with a time interval based on the continuous pulse sequence; and an image acquisition device configured to acquire an optical signal reflected by a sample irradiated by the multi-frequency interference fringe patterns to obtain a three-dimensional topography of the sample.

公开(公告)号：US20220115906A1

公开(公告)日：2022-04-14

申请号：US17485485

申请日：2021-09-26

Applicant: BEIJING INSTITUTE OF TECHNOLOGY

Inventor： Fang DENG ,  Yanxin JI ,  Xinyu FAN ,  Yeyun CAI ,  Chengwei MI ,  Feng GAO ,  Jie CHEN ,  Lihua DOU

IPC: H02J50/00 ,  H02J50/10 ,  H02J50/40 ,  H02J7/00 ,  H02J7/35 ,  G06F3/023 ,  G06F3/02

Abstract: A self-powered wireless keyboard by modifying the structure of a traditional membrane keyboard having a volcanic crater structure. Not damaging the original membrane keyboard structure, a micro magnet core is installed inside a cylindrical protrusion block under the key cap as a mover of the induction power generation device, and an induction coil is wound in a key slot of the keyboard base as the stator of the induction power generation device. In this way, when each key is pressed, it will produce induction current. A layer of flexible solar cell can be laid on the upper surface of the key, which can generate electricity by collecting the light energy in the surrounding environment during the time of daily illumination.

公开(公告)号：US11300790B2

公开(公告)日：2022-04-12

申请号：US16541929

申请日：2019-08-15

Applicant: ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA ,  BEIJING INSTITUTE OF TECHNOLOGY

Inventor： Dewen Cheng ,  Hong Hua ,  Yongtian Wang

IPC: G02B27/01 ,  G02B17/08 ,  G02B13/10 ,  G03B21/00 ,  G02B17/00

Abstract: A see-through free-form head-mounted display including a wedge-shaped prism-lens having free-form surfaces and low F-number is provided.

公开(公告)号：US11253953B1

公开(公告)日：2022-02-22

申请号：US17387662

申请日：2021-07-28

Applicant: BEIJING INSTITUTE OF TECHNOLOGY

Inventor： Lan Jiang ,  Xiaozhe Chen ,  Xin Li ,  Xiaojie Li ,  Misheng Liang

IPC: B23K26/06 ,  B23K26/362 ,  B23K26/067

Abstract: A method and a device for processing a unidirectional flow surface, the method includes: generating a grayscale map having gradually changed grayscale values; generating a holographic phase map having a bionic light spot with gradually changed energies based on the grayscale map; loading the holographic phase map onto a spatial beam shaper; and focusing a laser beam on a surface of an object to be processed after the laser beam passes through the spatial beam shaper, to process structural units having unidirectional flow characteristics on the surface of the object to be processed.

公开(公告)号：US20220032929A1

公开(公告)日：2022-02-03

申请号：US17320022

申请日：2021-05-13

Applicant: Beijing Institute of Technology

Inventor： Weida WANG ,  Chao YANG ,  Yuhang ZHANG ,  Wei WANG ,  Zheng MA ,  Changle XIANG

IPC: B60W50/02 ,  B60W60/00 ,  B60W50/038 ,  B60W30/06 ,  B60W10/18 ,  B60W10/08 ,  B60W10/119

Abstract: The present disclosure provides a fault-tolerant tracking control method of a four-wheel distributed electric drive autonomous vehicle. The method depends on a typical four-wheel distributed electric drive vehicle structure, comprising: first, realizing real-time acquisition of an output torque and a fault coefficient of a hub motor through each vehicle-mounted sensor and each parameter observer; then determining whether the vehicle power system enters a fault state, and if the hub motor is in the fault state, entering a set fault-tolerant tracking link; and judging the fault mode of the current vehicle, using different control logics for different fault modes, and finally realizing fault-tolerant control or emergency risk avoiding of the vehicle. According to the present disclosure, aiming at different fault conditions of a power system of the distributed electric drive autonomous vehicle, different coping modes and control strategies are used for guaranteeing the stability and safety of the vehicle as much as possible, and the safety of passengers and goods is guaranteed.

公开(公告)号：US20210394662A1

公开(公告)日：2021-12-23

申请号：US17334366

申请日：2021-05-28

Applicant: BEIJING INSTITUTE OF TECHNOLOGY

Inventor： Fang DENG ,  Xiang SHI ,  Wenjie CHEN ,  Xiaobo WU ,  Xinyu FAN ,  Lele ZHANG ,  Li LIANG ,  Xin GAO ,  Xianghu YUE ,  Ziman YE ,  Feng GAO

IPC: B60P3/07 ,  B62H3/00 ,  B60W60/00 ,  B60W40/12 ,  B60W40/06 ,  B60W50/14 ,  G06Q50/30 ,  G06Q10/06 ,  G07C5/08 ,  G05B13/02 ,  G01C21/34 ,  G08B7/06

Abstract: An intelligent transfer vehicle for shared bicycles includes: a cockpit, a vehicle body platform, shared bicycle parking racks, a wheeled device, a power source unit, and a vehicle-mounted unit. The intelligent transfer vehicle combines the function of a parking platform and a transfer platform into one, and can have three transfer modes to reduce reliance on a dispatch center, save costs and improve transfer efficiency.

公开(公告)号：US20210364574A1

公开(公告)日：2021-11-25

申请号：US17398004

申请日：2021-08-10

Applicant: Beijing Institute of Technology

Inventor： Zhongbao Wei ,  Hongwen He ,  Jian Hu

IPC: G01R31/367 ,  G01R31/3842 ,  G01R31/374 ,  H01M10/48 ,  H01M10/42

Abstract: A state-of-charge (SOC) online estimation method of an intelligent battery includes steps of performing online estimation on the SOC based on a real-time estimation model, wherein the real-time estimation model is based on an equivalent circuit model, and then obtaining online estimates of the SOC through the SOC-OCV (open circuit voltage) relationship, the current-voltage relationship under different working conditions, and the current terminal voltage and temperature of the intelligent battery. The intelligent battery that is able to apply the SOC online estimation method includes a battery cell and a cell management unit, wherein the cell management unit includes a sensor module, a switching device, a controller module, a communication module and a printed circuit board (PCB), the sensor module includes a voltage sensor and a temperature sensor; the voltage sensor, the temperature sensor, the switching device, the controller module and the communication module are integrated on the PCB.

公开(公告)号：US20210351667A1

公开(公告)日：2021-11-11

申请号：US17035264

申请日：2020-09-28

Applicant: Beijing Institute of Technology

Inventor： Qiang HUANG ,  Wu ZHANG ,  Donglin QIU ,  Xuechao CHEN ,  Qiang CHEN

IPC: H02K9/22 ,  H02K1/16 ,  H02K3/30 ,  H02K5/18

Abstract: The present disclosure provides a motor stator and a motor. The motor stator comprises a core; windings wound on the core; and a three-dimensional fitted winding inner groove embedding structure which is a cage-type structure having ribs and ends, the ribs being embedded in grooves between the windings, and the ends being connected to the ribs and cover ends of stator windings; both of the rib and the end of the inner groove embedding structure comprise nonmagnetic heat-conducting glue layers and a phase-change material layer interposed as an interlayer between the heat-conducting glue layers. According to the present disclosure, the heat of each part of the motor stator can be quickly conducted, so as to rapidly reduce the temperature, quickly eliminate the instantaneous temperature peak, and improve the temperature gradient equilibrium of each part.

公开(公告)号：US20210339407A1

公开(公告)日：2021-11-04

申请号：US17035231

申请日：2020-09-28

Applicant: Beijing Institute of Technology

Inventor： Qiang HUANG ,  Wu ZHANG ,  Donglin QIU ,  Zhangguo YU ,  Xingzhong LIU

IPC: B25J19/00 ,  B25J17/00 ,  B25J9/10

Abstract: The present disclosure provides a robot joint member, a dynamic joint and a robot with a heat dissipation structure. The joint member has a hollow barrel structure disposed to sleeve a heat source component, and a plurality of phase change heat dissipation units; the phase change heat dissipation unit comprises a phase change working medium, a capillary material and a sealed phase change cavity; heat dissipation auxiliary ribs are arranged on a periphery of the barrel wall of the joint member and a side of the phase change heat dissipation unit away from the heat source component; and the heat dissipation auxiliary ribs define a plurality of gas flow channels with cross sections gradually reduced along a gas flow direction. The joint member has can quickly eliminate the heat accumulation of the joint power source, and can keep a compact structure of the dynamic joint of the robot.

公开(公告)号：US20210222310A1

公开(公告)日：2021-07-22

申请号：US17142264

申请日：2021-01-06

Applicant: BEIJING INSTITUTE OF TECHNOLOGY

Inventor： HUAPING WANG ,  QING SHI ,  SHAOAN WANG ,  ZHIQIANG ZHENG ,  QIANG HUANG ,  TOSHIO FUKUDA

IPC: C25D1/20 ,  A61M31/00 ,  C09D5/44 ,  C25D1/08 ,  C25D5/00 ,  C25D5/34 ,  C08L5/04

Abstract: A preparation method of a miniature intelligent calcium alginate hydrogel end operator based on different microelectrodes is introduced. The method includes an electrodeposition step of depositing a deposition solution under the action of a non-uniform magnetic field to form an anode surface; a processing step of transferring obtained hydrogel microstructures to a calcium chloride solution, making the hydrogel microstructure self-wind sufficiently; and a pickup step of collecting a self-winding single-layer film alginate microstructure in a culture dish, and placing it in specific environment for preservation. The preparation method can provide a degradable and convenient micro-operator, which could be locally prepared into different function components.